402 



PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Al. Callichthys callichthys Linnaeus, 1 



E. & E., 452. 



Callichthys tamoata Linnaeus; C. asper 

 Quoy & Gaimard; Cataphractus de- 

 pressus Swainson; Callichthys cce- 

 latus Cuvier & Valenciennes; C. 

 laviceps Cuvier & Valenciennes; C. 

 loricatus Gronow ; C. kneri Gill ; C. 

 affinis Giinther; C. hemiphractus 

 Hensel. 



Habitat : La Plata to Trinidad. 

 2. Callichthys arcifer Hensel, E. & E., 455. 

 Habitat: Rio de Janeiro. 



HOPLOSTERNUM Gill. 



Type : Callichthys l&vigatus Valencien- 

 nes. , 



Range : La Plata to Trinidad. 

 Al. Hoplosternum littorale (Hancock), 



E. & E., 456. 



Callichthys subulatus Cuvier & Valen- 

 ciennes; C. lavigatus Valenciennes; 

 C. albidus Cuvier & Valenciennes; 

 Hoplosternum stewardii Gill. 



Habitat : La Plata to Trinidad. 

 A2. Hoplosternum thoracatum (Cuvier & 

 Valenciennes), E. & E., 458. 



Callichthys longifilis Cuvier & Valen- 

 ciennes; C. personatus Ranzani; C. 

 exaratus and pictus Miiller & Tro- 

 schel; C. sulcatus Kner; C. chiquitos 

 Castelnau. 



Habitat: Amazons and northward; 



Paraguay. 

 A3. Hoplosternum melampterum (Cope). 



Hoplosternum pectoralis Boulenger. 



Habitat : Ambyiacu. 



DECAPOGON Eigenmann & Eigenmann. 



Type : Callichthys adspersus Steindach- 



ner. 

 Range that of the single species. 



1 Several varieties of this species may be recognizable. 

 Regan considers kneri from Trinidad a distinct species. 



Al. Decapogon adspersum (Steindachner), 



E. & E., 461. 



Habitat : Porto do Moz ; Cudajas ; Ta- 

 batinga. 



DIANEMA Cope. 



Type: Dianema longibarbis Cope. 

 Range that of the single species. 

 A I. Dianema longibarbis Cope, 



E. & E., 463. 

 Habitat: Ambyiacu. 



CH^NOTHORAX Cope. 



Type : Chcenothorax bicarinatus Cope. 

 Range : Maranon and tributary. 

 I. Chanothorax taiosh (Castelnau), 



E. & E., 464- 

 Habitat: ? 

 A2. Chanothorax bicarinatus Cope, 



E. & E., 464. 

 Habitat: Maranon. 

 A3- Chcenothorax semiscutatus Cope, 



E. & E., 464. 

 Habitat: Ambyiacu. 



BROCHIS Cope. 



Type: Brochis coeruleus Cope. 



Range : Maranon and tributaries. 

 At. Brochis dipterus Cope, . .E. & E., 464. 



Habitat: Ambyiacu. 

 A2. Brochis coeruleus Cope, . .E. & E., 464. 



Habitat : Ambyiacu. 



ASPIDORAS von Ihering. 



Type: Aspidoras rochai v. Ihering. 

 Range that of the single species. 

 I. Aspidoras rochai v. Ihering, 



v. I., 1907, 30. 

 Habitat: Fortaleza, Ceara. 



CORYDORAS Lacepede. 



Hoplisoma Swainson; Hoplosoma Gill; 



Gasterodermis Cope. 

 Type : Corydoras geoffroy Lacepede. 



